diff --git a/pkgs/development/python-modules/chat-downloader/default.nix b/pkgs/development/python-modules/chat-downloader/default.nix
new file mode 100644
index 000000000000..40aa56d75fac
--- /dev/null
+++ b/pkgs/development/python-modules/chat-downloader/default.nix
@@ -0,0 +1,54 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, requests
+, isodate
+, docstring-parser
+, colorlog
+, websocket-client
+, pytestCheckHook
+, fetchpatch
+}:
+
+buildPythonPackage rec {
+  pname = "chat-downloader";
+  version = "0.2.0";
+
+  # PyPI tarball is missing files
+  src = fetchFromGitHub {
+    owner = "xenova";
+    repo = "chat-downloader";
+    rev = "v${version}";
+    sha256 = "sha256-SVZyDTma6qAgmOz+QsPnudPrX1Eswtc0IKFRx1HnWLY=";
+  };
+
+  patches = [
+    # Remove argparse from dependencies. https://github.com/xenova/chat-downloader/pull/167
+    (fetchpatch {
+      url = "https://github.com/xenova/chat-downloader/commit/cdaca5e3a334c8db1b37bebe191d181ebdfa576c.patch";
+      sha256 = "sha256-AgH305dJmNRZy23lAf1h40klDE67RSwEL8o2gxX0VGA=";
+    })
+  ];
+
+  propagatedBuildInputs = [
+    requests
+    isodate
+    docstring-parser
+    colorlog
+    websocket-client
+  ];
+
+  # Tests try to access the network.
+  doCheck = false;
+
+  checkInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "chat_downloader" ];
+
+  meta = with lib; {
+    description = "A simple tool used to retrieve chat messages from livestreams, videos, clips and past broadcasts";
+    homepage = "https://github.com/xenova/chat-downloader";
+    license = licenses.mit;
+    maintainers = with maintainers; [ marsam ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 7cb622c1c02a..633ad15a64dd 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1728,6 +1728,8 @@ in {
 
   chart-studio = callPackage ../development/python-modules/chart-studio { };
 
+  chat-downloader = callPackage ../development/python-modules/chat-downloader { };
+
   check-manifest = callPackage ../development/python-modules/check-manifest { };
 
   cheetah3 = callPackage ../development/python-modules/cheetah3 { };